Research Article
A Novel two-step search scheme for IR-UWB in multipath channels
@INPROCEEDINGS{10.1109/CHINACOM.2007.4469469, author={Wang Yanbo and Li Shiju}, title={A Novel two-step search scheme for IR-UWB in multipath channels}, proceedings={2nd International ICST Conference on Communications and Networking in China}, publisher={IEEE}, proceedings_a={CHINACOM}, year={2008}, month={3}, keywords={acquisition impulse-like radio ultra-wideband(IR-UWB) multipath search scheme}, doi={10.1109/CHINACOM.2007.4469469} }- Wang Yanbo
Li Shiju
Year: 2008
A Novel two-step search scheme for IR-UWB in multipath channels
CHINACOM
IEEE
DOI: 10.1109/CHINACOM.2007.4469469
Abstract
In this paper, we propose a novel two-step search scheme for Impulse-like Radio Ultra-wideband (IR-UWB) in order to utilize the Multipath Components (MPCs) effectively. The search scheme includes two successive steps, named coarse acquisition and fine acquisition. During the coarse phase, two adaptive template signals are generated to correlate with the received signals respectively. By this means, the search region is decreased rapidly. Then based on new search region a full serial search scheme is used during the fine phase. This algorithm utilizes the paths with relatively significant energy, and has a remarkable reduction in mean acquisition time. Further more, it also addresses the channel estimation based on which a Partial RAKE receiver could be designed expediently. Simulations are performed to verify our conclusions.